package com.szl.yeb.config.security.component;

import org.springframework.security.access.AccessDecisionManager;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.stereotype.Component;

import java.util.Collection;

/**
 * @program: yeb
 * @description: 权限控制
 * @author: szl
 * @create: 2022-08-26 08:58
 **/
@Component
public class CustomUrlDecisionManager implements AccessDecisionManager {
    @Override
    public void decide(Authentication authentication, Object object, Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
        for (ConfigAttribute configAttribute : configAttributes) {
            String needRole = configAttribute.getAttribute();

            if("ROLE_LOGIN".equals(needRole)){
                if(authentication instanceof AnonymousAuthenticationToken){
                    throw new AccessDeniedException("尚未登陆，请登录");
                }else {
                    return;
                }
            }

            for (GrantedAuthority authority : authentication.getAuthorities()) {
                if(authority.getAuthority().equals(needRole)){
                    return;
                }
            }
        }

        throw new AccessDeniedException("权限不足，请联系管理员");
    }

    @Override
    public boolean supports(ConfigAttribute attribute) {
        return false;
    }

    @Override
    public boolean supports(Class<?> clazz) {
        return false;
    }
}
